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Gas hold‐up in highly viscous pseudoplastic non‐newtonian solutions in three phase sparged reactors
Author(s) -
Dharwadkar S. V.,
Sawant S. B.,
Joshi J. B.
Publication year - 1987
Publication title -
the canadian journal of chemical engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.404
H-Index - 67
eISSN - 1939-019X
pISSN - 0008-4034
DOI - 10.1002/cjce.5450650307
Subject(s) - shear thinning , carboxymethyl cellulose , superficial velocity , materials science , newtonian fluid , settling , rheology , viscosity , particle (ecology) , phase (matter) , chromatography , thermodynamics , chemistry , mechanics , composite material , flow (mathematics) , physics , metallurgy , oceanography , organic chemistry , geology , sodium
Gas hold‐up structure was studied in a three phase sparged reactor of 200 mm diameter. Air and aqueous solutions of carboxymethyl cellulose were used as gas and liquid phases. Spherical glass beads formed the solid phase. The superficial gas velocity, rheological properties, particle size and solid loading were varied over a wide range and their effects on gas hold‐up structure were studied. A correlation for the estimation of the gas hold‐up as a function of superficial gas velocity, apparent liquid viscosity, particle settling velocity and solid loading was established.